Preformed roadway-block.



1.A,|0PPH\1G.

PREFORMED ROADWAY BLOCK.

APPLICATION FXLED OCT.5,1914.

l @65,55% www@ Aug. 17, w15.

7 SHEETSFSHEET 1.

j. TOPPING.

PREFORMED ROADWAY BLOCK.

APPLxcATmN FILED 0615,1914Y wm, mmm Aug. 1915.

il. .fi

- Jenn .f-l; Terrine, or CHICAGO, ILLrNoIs.

PREFORMED ROAilAYmBLOCK.

Specification of Letters Patent. l llgziteuiiqgul Aug. 17, 1915.

Application filed Gotobel 5, 1914.' Serial No. 865,(1'98.

llc. it known that l., Jenn Terrine, a citizen ot' the United States, residing' at Chicago, in the county eig-Cook and tit-arte of Illinois, have invented certain new and useful lluprovcments in lreiiormed Road- -\\'a vl5locks, of which the following is al and floors and to prevent it from saggingwhen applied to walls, more or less vertical, as side walls of rooms, roofs, and the like` and which structure. will receive and sustainthe glileater portion ot' the burden o't' a coneentinted vertical load incident to its use in roadways, walks. floors. 'aterprooling for bridges, viaducts, etc.

Another ohject of iny invention is to preform relatively thin sheets, blocks or mats of masi"y asphalt, with the weight bearing structure tlm-rein` or uniform size and character, at. a factorv, said blocks being' so constructed and arranged asto provide and preserve a unit'orm structure throughout after beingi placed in position on roadway, or the like, the interlapping parts ol the metal portions being such to produce the same disposition ot metal at the lines of `iointuro as olotainv throughout the hody part ot' the lilock.

Other and further objects of my invention will become readily apparent to persons skilled in the art 'from a consideration of the following description` when taken in conjunction with the drawings` wherein lfigure l is a plan view'ot the finished block or mat showing parts of the rcstrain Fig. 2 is a tragmental view showing how adjacent blocks are joined at proximate edges when the. construction is laid vin a plurality o' relatively small blocks instead ot larger singles'heets. Fig. 3 isa, section taken on line 3-3 oilig. 1.- Fig 4 is an isometric perspective view of the metallic restraining structure. Fig. 5 is a. section taken on line 5..-5 0f rig. e.

lnall the views the same reference char actors are lemployed to indicate similar parts A roadway or floor, madeof asphalt mas-v tic, or having a covering coating of asphalt mastic, possesses n'iany admirable and advantageous features, it. also has certain recognized faults. Under temperature' 0157 degrees Fahrenheit a sheet of unsupported asphalt mastic three-quarters of an inch. thick will carry a. vertically applied super Aposed load of 1000 pounds, in an ordinary wagon, without producingappreciable indentation hy the wheels. Under a temperature ot' 98 degrees Fahrenheit, however, the asphalt coating is -much .softer and Will readily yield to a similarly concentrated load ot thc. saine weight. Under the conditions mentioned 'the mastic is not compacted but is'caused to creep or crawl from under the wheels. Such action is known in the art as shoving, and when the load is withdrawn the depressions thus made are left in the soft mastic.v The mastic is not mobile enough to come bi ek to its original position and under the effect of constant traveling over the same surface, deep depressions or ruts will thus he made in the asphalt. y p

The object of my invention is to eliminate such objectionable features, by incorporating in' the sheet of mastic., a. metal fabric made up or' a series ot wide, rela tively thin strips crossing each other at suitable angles and placed upon. their edges so as to have their greatest dimensions in vertical planes, and providing pockets he-v tween said strips, which are to be filled with asphalt mastic until the said mastic is substantially Hush with the. longitudinal, relatively thin edges of said strips. When such a metallic restraining?r structure is incorporated in al sheet. of' asphalt mastic, as described, the mastic is held. and restrained against. shoving", or lateral displacement, by the side walls of the pockets so that it cannot move Iout to any great extent 4from under the surface, of the "vehicle wheels. and the pressure applied to the mastic proper, in the new construction, is not as great he*A cause the incorporated metal. fabric will take the load, or most of it. The only stress 5g Lisanne or strain that is applied to the 'asphalt road Way or floor constructions is that of compression, and therefore my incorporated to form a base thereby giving a greater Weight bearing surface to 'the fabric in contact with the underlying base. My incorporated restraining structure in a sheet of relatively thin. block of asphalt -is not in the nature of a reinforcement, to increase the tensile strength or to' resist the pulling apart of the mastic material associated therewith, as similar structures are used in cement blocks. In using asphalt mastic in connection Vwith floor and road- Way structures the tensile strength'ot the material is not called into requisition.v

I have herein shown one exemplication for carrying; my invention into effect and. in Fig. 1 I have shown how a structure maybe made-in relatively small blocks or mats or' suitable size and subsequently put together Vat the place, floor, or roadway, where they` are to be used. Relatively long strips 10 alternate with relatively shorter parallel strips 10 and cross strips 11, which are longer than the intermediate strips 11 cross the strips 10 and 10. A portion of each ofthe strips is deflected, as at 12, to form a'base for support of the vertical portion 13. The ver tical Wall 13 is notched. at intervals, as at 1d, Within which to receive the adjacent cross strip. A portion of the vertical Wall 13 is down turned, as at 15, to provide a base upon which the cross strip may rest.' The down -turned portion. 15 may be riveted, or spot welded to the superposed cross strip, as at 16, to hold the strips together to form pockets in which to receive the mastic material 17. The mastic material 17 is placed in` the pockets, provided in the restraining metal. fabric, compressed. and compacted therein until it entirely iills the pockets and is flush with the vertical edges on each side of the metal fabric. ln Fig. l it will be observed, that the longer bars or strips project beyond the pockets near the outer boundary of the block formed by the mastic material. These bars or strips are arranged with ret crcncc Lto the adjacent blocks or sheets, as shown in Fig. 2, wherein alternate elongated bars are placed adjacent the shorter hars of the next block, or sheet and mastic material 17 is illed in the pockets thus pro vided at thc joints after the mats or sheets have been piaceri in position and lined on the underlying base or roadway and by this means pockets of uniform sii/.c and shape are evenly distributed throughout the entire structure of asphalt mastic. i

l'fa sheet, substantially. as showin in Fig.' 1, be applied to 'a vertical Wall, or to a roof, thel walls 13, of the structure, will support' the mastic contained in the respective pock-A ets and revent shovinva fallin@ or sa"- Y bf .D t)

i ging. The mastic placedl in one pocket, in the structure, communicates With that 1n another pocket through 'the gaps, or notches 14- providedby the down-turned joint por-4 tions 15 of the crossing strip, and by this means there -is a knitting together of the mastic 'within each and every one of the pockets in the entire mat or sheet. I

I realize that mastic asphalt or composi# tion may be made sufficiently strong or staunch and less yielding, to withstand any ordinary load that may be imposed upon it, by the admixture of cement, sand or other like comminuted similar substances when otherwise the mastic materials Would be too soft without these admixtures, as in summer weather when the temperature is from to 100 degrees. But such admixtures for making the composition ot' such a character as to withstand the conditions to which 1t 1s subjected under such temperature, when subphaltic `materials may beavailed for the' purpose, providing a structure that Will stand the rigors of `the coldest climate without cracking or disintegrating and capable of carrying the heaviest loads to which it would be subjected during summer Weather of higher temperature.

lVhile l have herein shown a single embodiment of my invention for the purpose ot' clear disclosure.. it is manifesty that considerable change in the arrangement and disposition oi the parts may be made within the scopo ot' the appended claims Without departingr from the spirit thereof.

Having described my invention, what "t claim is r- 1. A buildiingy` structure comprising a metallic fabric 'consistingof a series of parallel Lshaped metal strips; a second series of.

posed strips. and a filling of homogeneous' material flush with the top and bottom edges oi.1 saiil strips.

2. A building' structure comprising a metallic fabric consistingof a series of parallel l.shapc l metal strips,y each strip consisting ot' a hase Wall. and a vertical wall: a second se'iics of parallel L-shaped metal strips, In testimony whereof I hereunto set 1115'- ciossing the` first sries of strips, the under hand in the presenceof ,two subscribing sti-1p u1 euch instance having portions of its witnesses.

vertical wall-at the crossing downturned into JOHN A. TOPPING. 5 n plane with its buse wall and a filling of In the presence 0fhomogeneous material Hush with the top STANLEY W. COOK,

und bottom edges of said strips. MARY F; ALLEN. 

